WhatsApp and Telegram have both billed themselves as secure alternatives to phone, text or email correspondence. For the most part, that’s true, the two are end-to-end (e2e) encrypted by default and because of this, your conversations are much harder to monitor by outsiders.SS7 vulnerabilities aren’t a secret. We’ve known about them for years, as have governments around the world, telecoms and yes, hackers. The problem is, the vulnerability isn’t a simple one to fix, but more on that later.